"For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms."
C.S. Lewis, in the Screwtape Letters, when it comes to devils and demons there are TWO equally wrong and equally damaging errors. He said, “One is to disbelieve in their existence -- the other is to have an unhealthy interest in them.”